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Finding the Fourth Proportional to 3,903.68, 5,845.56 and 2,255.18

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Solution

The fourth proportional to 3,903.68, 5,845.56 and 2,255.18 is: 3,377.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.68 : 5,845.56 = 2,255.18 : x
  2. Step 2: Convert to fraction form
    3,903.68/5,845.56 = 2,255.18/x
  3. Step 3: Cross multiply
    3,903.68x = 5,845.56 × 2,255.18
  4. Step 4: Simplify right side
    3,903.68x = 13,182,790.00
  5. Step 5: Solve for x
    x = 13,182,790.00/3,903.68
  6. Step 6: Final answer
    x = 3,377.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.